Update changelog and readme for #1084

Signed-off-by: Fred Bricon <[email protected]>

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## 0.51.0 (October 16th, 2019)
 * enhancement - [experimental] automatically trigger auto-import on paste. Can be disabled with `java.actionsOnPaste.organizeImports`. See [#1075](https://github.com/redhat-developer/vscode-java/issues/1075) and [#1098](https://github.com/redhat-developer/vscode-java/issues/1098).
+* enhancement - allow negative patterns in `java.import.exclusions` preference, to allow folder inclusions. See [#1084](https://github.com/redhat-developer/vscode-java/issues/1084).
 * enhancement - made code snippets context sensitive. See [JLS#977](https://github.com/eclipse/eclipse.jdt.ls/issues/977).
 * enhancement - improve snippet documentation rendering. See [JLS#1205](https://github.com/eclipse/eclipse.jdt.ls/issues/1205).
 * bug fix - fixed preview features enabled at an invalid source release level 12, preview can be enabled only at source level 13. See [#1086](https://github.com/redhat-developer/vscode-java/issues/1086).

README.md

@@ -82,7 +82,7 @@ The following settings are supported:
 * `java.implementationsCodeLens.enabled` : Enable/disable the implementations code lenses.
 * `java.signatureHelp.enabled` : Enable/disable signature help support (triggered on `(`).
 * `java.contentProvider.preferred` : Preferred content provider (see 3rd party decompilers available in [vscode-java-decompiler](https://github.com/dgileadi/vscode-java-decompiler)).
-* `java.import.exclusions` : Exclude folders from import via glob patterns.
+* `java.import.exclusions` : Exclude folders from import via glob patterns. Use `!` to negate patterns to allow subfolders imports. You have to include a parent directory. The order is important.
 * `java.import.gradle.enabled` : Enable/disable the Gradle importer.
 * `java.import.gradle.home`: setting for GRADLE_HOME.
 * `java.import.gradle.arguments`: Arguments to pass to Gradle.

package.json

@@ -201,7 +201,7 @@
         },
         "java.import.exclusions": {
           "type": "array",
-          "description": "Configure glob patterns for excluding folders",
+          "description": "Configure glob patterns for excluding folders. Use `!` to negate patterns to allow subfolders imports. You have to include a parent directory. The order is important.",
           "default": [
             "**/node_modules/**",
             "**/.metadata/**",